Apartment House for Interbau Exhibition, Berlin-Hansaviertel, 1955-1957: Door schedule

Graphite on off-white wove paper

Watercolor over graphite on off-white wove paper

Watercolor and black chalk on heavy off-white wove paper

Graphite on ruled notebook paper, mounted on heavy card

Black wash on tan wove paper

Brown ink and wash over graphite on buff wove paper

Watercolor and selectively applied glaze on off-white modern laid paper

Charcoal on tan laid paper

Graphite on off-white wove paper

Graphite on paper

Graphite on buff wove paper

Black crayon and ink ; black crayon on paper